libguile/vm-expand.h

   1 /* Copyright (C) 2001 Free Software Foundation, Inc.
   2  *
   3  * This library is free software; you can redistribute it and/or
   4  * modify it under the terms of the GNU Lesser General Public License
   5  * as published by the Free Software Foundation; either version 3 of
   6  * the License, or (at your option) any later version.
   7  *
   8  * This library is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * Lesser General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public
  14  * License along with this library; if not, write to the Free Software
  15  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  16  * 02110-1301 USA
  17  */
  18
  19 #ifndef VM_LABEL
  20 #define VM_LABEL(tag) l_##tag
  21 #define VM_OPCODE(tag) scm_op_##tag
  22
  23 #ifdef HAVE_LABELS_AS_VALUES
  24 #define VM_TAG(tag) VM_LABEL(tag):
  25 #define VM_ADDR(tag) &&VM_LABEL(tag)
  26 #else /* not HAVE_LABELS_AS_VALUES */
  27 #define VM_TAG(tag) case VM_OPCODE(tag):
  28 #define VM_ADDR(tag) NULL
  29 #endif /* not HAVE_LABELS_AS_VALUES */
  30 #endif /* VM_LABEL */
  31
  32 #undef VM_DEFINE_FUNCTION
  33 #undef VM_DEFINE_LOADER
  34 #define VM_DEFINE_FUNCTION(code,tag,name,nargs) \
  35   VM_DEFINE_INSTRUCTION(code,tag,name,0,nargs,1)
  36 #define VM_DEFINE_LOADER(code,tag,name)         \
  37   VM_DEFINE_INSTRUCTION(code,tag,name,-1,0,1)
  38
  39 #undef VM_DEFINE_INSTRUCTION
  40 /*
  41  * These will go to scm_instruction_table in instructions.c
  42  */
  43 #ifdef VM_INSTRUCTION_TO_TABLE
  44 #define VM_DEFINE_INSTRUCTION(code_,tag_,name_,len_,npop_,npush_) \
  45   table[VM_OPCODE (tag_)].opcode = code_;                          \
  46   table[VM_OPCODE (tag_)].name = name_;                            \
  47   table[VM_OPCODE (tag_)].len = len_;                              \
  48   table[VM_OPCODE (tag_)].npop = npop_;                            \
  49   table[VM_OPCODE (tag_)].npush = npush_;
  50
  51 #else
  52 #ifdef VM_INSTRUCTION_TO_LABEL
  53 /*
  54  * These will go to jump_table in vm_engine.c
  55  */
  56 #define VM_DEFINE_INSTRUCTION(code,tag,name,len,npop,npush)     jump_table[code] = VM_ADDR (tag);
  57
  58 #else
  59 #ifdef VM_INSTRUCTION_TO_OPCODE
  60 /*
  61  * These will go to scm_opcode in instructions.h
  62  */
  63 #define VM_DEFINE_INSTRUCTION(code,tag,name,len,npop,npush)     VM_OPCODE (tag) = code,
  64
  65 #else /* Otherwise */
  66 /*
  67  * These are directly included in vm_engine.c
  68  */
  69 #define VM_DEFINE_INSTRUCTION(code,tag,name,len,npop,npush)     VM_TAG (tag)
  70
  71 #endif /* VM_INSTRUCTION_TO_OPCODE */
  72 #endif /* VM_INSTRUCTION_TO_LABEL */
  73 #endif /* VM_INSTRUCTION_TO_TABLE */
  74
  75 /*
  76   Local Variables:
  77   c-file-style: "gnu"
  78   End:
  79 */